There's more to this than the article covers; low pitches in music are appealing even if there aren't vocals. Playing a low note along with the same note an oc

There's more to this than the article covers; low pitches in music are appealing even if there aren't vocals. Playing a low note along with the same note an octave up just feels powerful. The lowest note of a chord gets parsed by the brain as a sort of anchor, which is why you can play CEG on a piano, take your thumb off the C, put your little finger on the next higher C, and it sounds different. There's got to be something going on in the lizard-brain that parses high and low notes, similar to how music in general is so attractive, but it's not easily explainable what that is.